CN102114898A - Mass distribution adjusting device for buoy model - Google Patents
Mass distribution adjusting device for buoy model Download PDFInfo
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- CN102114898A CN102114898A CN2011100213907A CN201110021390A CN102114898A CN 102114898 A CN102114898 A CN 102114898A CN 2011100213907 A CN2011100213907 A CN 2011100213907A CN 201110021390 A CN201110021390 A CN 201110021390A CN 102114898 A CN102114898 A CN 102114898A
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Abstract
The invention relates to a mass distribution adjusting device for a buoy model, which comprises a support frame and a swing frame, wherein the swing frame comprises a model supporting platform and a heavy object whose weight is adjustable, two steel support blades are arranged on the two sides of the top of the support frame respectively, and the swing frame is movably connected with the support frame through the two steel support blades. A load-bearing structure formed by the support frame and the swing frame is adopted; and in order to measure an irregularly shaped buoy model to be measured, instead of a flat plate mode in the prior art, the installation mode of the detected buoy model on the swing frame is that based on the feature that the buoy is substantially round, four tapered supports are arranged in symmetrical positions of the model supporting platform of the swing frame, and all that is needed is to find four stable support points on the detected buoy model rather than have to find a large plane in a ship model. Therefore, the model is kept stable with a minimum contact area and simultaneously has maximum shape adaptability. The mass distribution adjusting device for the buoy model can be widely applied in the field of ships and ocean engineering.
Description
Technical field
The present invention relates to a kind of mass distribution control apparatus, particularly about a kind of in the ocean engineering model experimental tank floating drum model quality profile adjustment device to deep water buoy formula mooring system.
Background technology
Along with the continuous growth of world energy consumption, and the construction of natural gas fields by land is saturated gradually, and people are extended to the ocean with the field of oil and gas development.Though the progress of development of science and technology and ocean engineering makes the mankind constantly make progress in the exploitation of deep-sea ocean engineering, but how with various floating structures, as Floating Production oil storage uninstalling system (FPSO, Floating Production Storage and Offloading) etc. marine oil and gas is produced the equipment safety mooring in the production fields position, is to solve to produce and safing major issue.At present, adopt the pontoon type mooring be a kind of on marine oil field mooring ship and flat-bed effective means, obtained extensive utilization.And the floating drum in the marine oil and gas production is different with conventional mooring drum, its volume is bigger, quality and buoyancy are all bigger, large-scale floating drum quality has reached hundreds of tons, volume reaches tens of meters yardstick, motion that is produced under the effect of suffered external load and the load that causes are all comparatively complicated, thereby in order to obtain exactly at complicated marine environment with by the performance accurately under the combined action of mooring platform, can not put as a simple particle and buoyancy in model test and handle, its model must be simulated quality and mass distribution situation accurately.For the body, mass distribution is regulated and is comprised the position of center of gravity and the distribution of quality (inertia) etc.
In the simulation of floating drum model, because the conventional model scale ratio of ocean engineering is 50～100, therefore, even hundreds of tons lighthouse buoy, the gross weight of its model is also only about 1～2 kilogram, with the also very difficult adjusting of the inertia adjusting stand that is adopted in the conventional ocean engineering model test.(its patent of invention number is the inertia adjusting stand that is had at Shanghai Communications University's THE STATE KEY LABORATORY OF OCEAN ENGINEERING: 02137056.7), this adjusting bracket is the boats and ships developed voluntarily of laboratory and the model inertia control system of platform, it can reach result very accurately for hundreds of kilograms boats and ships and offshore platform model heavily approximately, and the application of having succeeded in large quantities of ocean engineering models tests.But it then is " wasting one's talent on a petty job " that its inertia that is applied to the ocean mooring buoy is regulated.Simultaneously, because the floating drum model quality is lighter, height of gravitational center and offset position are less, and the quality of inertia adjusting stand itself just reaches hundreds of kilograms, the two if regulate with this inertia adjusting stand, then can cause the error of adjusting to reach unacceptable degree not on same magnitude.Even this adjusting bracket is carried out miniaturization, also be difficult to adapt to the adjustment of floating drum, because the suitable comparatively smooth model in bottom of regulating of this adjusting bracket, comparatively complicated for shape, sometimes or even the floating drum of unconventional shape, as the bottom projection is arranged, the floating drum of pit etc. just must be provided with a large amount of Holder Fasteners, and adjustment is comparatively difficult and can cause bigger error.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of tested floating drum model of various difformity sizes that can adapt to and regulate, simple in structure, the inertia that can solve small-sized ocean mooring buoy is regulated the floating drum model quality profile adjustment device of a difficult problem.
For achieving the above object, the present invention takes following technical scheme: a kind of floating drum model quality profile adjustment device is characterized in that: it comprises that a bracing frame and waves framework, and the described framework that waves comprises that a model support platform and can regulate the weight of weight; Both sides, support frame as described above top are respectively arranged with a steel bearing edge, and the described framework that waves flexibly connects by two described steel bearing edges and support frame as described above.
The described framework that waves comprises described model support platform, and the place, four summits of described model support platform is provided with a taper bracing frame respectively, and two described taper bracing frames are corresponding setting with two described steel bearing edges respectively; The bottom of described model support platform, with the corresponding suspension arm that is provided with two aluminums of two other described taper bracing frame, the end of described two suspension arms all is connected to described weight, forms leg-of-mutton heavy burden structure; Be respectively arranged with a guide rail between described model support platform and four described taper bracing frames; The below of described model support platform is respectively arranged with a hook that is used for hanging in measurement counterweight with four described guide rail corresponding sections.
Described model support platform adopts the hollow ring structure of light-duty aluminium matter.
On the described model support platform, offer one respectively with two described steel bearing edge corresponding positions and be used to guarantee the described shallow slot that framework freely swings that waves.
Support frame as described above adopts the square structure of steel, and the described framework that waves adopts triangular structure.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is owing to adopting by bracing frame and waving the heavy burden structure that framework is formed, both sides, bracing frame top are respectively arranged with the steel bearing edge, wave framework and flexibly connect by two steel bearing edges and bracing frame.In order to measure erose tested floating drum model, wave the Installation Modes of tested floating drum model on the framework and abandoned flat mode, but be the characteristics of prototype substantially according to floating drum, on the symmetric position of the model support platform of waving framework, be provided with four taper bracing frames, as long as on tested floating drum model, search out four stable strong points, rather than as bigger plane of the necessary searching of ship model, therefore, when using minimum area of contact to guarantee that model is firm, also has maximum profile comformability.2, therefore the present invention, by adjusting the height of each taper bracing frame, can adapt to the profile needs of tested different shape floating drum model owing to adopt locating a taper bracing frame is set respectively on four summits of model support platform.3, the present invention is because the model support platform adopts the hollow ring structure, make the middle hollow position place of model support platform can hold the outstanding structure of tested floating drum model, thereby when guaranteeing precision, simplified the erection work that tested floating drum model is adjusted greatly.4, the present invention is owing to adopt to be respectively arranged with guide rail between model support platform and four taper bracing frames, and each taper bracing frame can be done suitable mobile along guide rail, thereby provides bigger facility for the installation of tested floating drum model.5, the present invention is because the tested floating drum model of measuring is lighter, and each taper bracing frame can't destroy tested floating drum structure of models.And also can regulate in the weight of heavy of waving the setting of framework bottom, the framework that waves after guaranteeing that tested floating drum model is installed still can be outside two steel bearing edges be realized the stable equilibrium, can also be by regulating the requirement that weight of heavy adapts to the tested floating drum model adjustment of different quality, can suitably lower weight of heavy to improve measuring accuracy for lighter tested floating drum model, satisfy the requirement of ocean engineering model test.The present invention can be widely used in the Naval Architecture and Ocean Engineering field.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present invention;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the level attitude scheme drawing that the present invention measures tested floating drum model center of gravity;
Fig. 4 is the height and position scheme drawing that the present invention measures tested floating drum model center of gravity;
Fig. 5 is the inertia scheme drawing that the present invention measures tested floating drum model.
The specific embodiment
Be described in detail of the present invention below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, the present invention includes the square bracing frame of a steel 1 and one leg-of-mutton framework 2 that waves, both sides, bracing frame 1 top are respectively arranged with a steel bearing edge 3, wave framework 2 and flexibly connect, and then realize that waving framework 2 can freely swing around two steel bearing edges 3 by two steel bearing edges 3 and bracing frame 1.Wave the amplitude of fluctuation and the cycle of framework 2 by measurement, can determine the mass distribution situation of tested model, adjust and revise repeatedly, just can accurately simulate the mass distribution situation of floating drum model according to measured result.
In the foregoing description, model support platform 4 adopts the hollow ring structure of light-duty aluminium matter, and the centre can hold the outstanding structure of tested floating drum model 7.
In the various embodiments described above, on model support platform 4, offer a shallow slot respectively, to guarantee to wave freely swinging of framework 2 with two steel bearing edges, 3 corresponding positions.
In sum, the present invention in use, as shown in Figure 3, at first adjust the level attitude of tested floating drum model 7 centers of gravity: tested floating drum model 7 is adjusted to a direction, for example adjust the x direction earlier, tested floating drum model 7 is placed in waves on the framework 2, the target center-of-gravity position (being the g point) of tested floating drum model 7 is placed the center position of two steel bearing edges 3, to wave framework 2 furnishing levels by the position of adjusting ballast in the tested floating drum model 7, this moment, the actual center gravity position was located between two steel bearing edges 3.Then, again tested floating drum model 7 is adjusted to another direction (being the y direction), be reinstalled in and wave on the framework 2 after tested floating drum model 7 horizontally rotated 90 degree, repeat above step, just the actual center gravity of tested floating drum model 7 can be adjusted to target center-of-gravity position place and coincide.
As shown in Figure 4, behind the level attitude of having adjusted tested floating drum model 7 centers of gravity, adjust the height and position of tested floating drum model 7 centers of gravity again.On the hook 10 that waves framework 2, place counterweight 11, heeling condition by the model support platform 4 behind the measurement placement counterweight 11, just can obtain the actual center gravity height of tested floating drum model 7, relatively the back is adjusted by the ballast in the tested floating drum model 7 with expected value, till the actual center gravity height of tested floating drum model 7 reaches the target height of gravitational center.
As shown in Figure 5, finish the level attitude and height adjustment of tested floating drum model 7 centers of gravity after, adjust the inertia of tested floating drum model 7.Take off the counterweight 11 that waves on the framework 2, by measuring tested floating drum model 7 and waving the inertia parameter that framework 2 common rolling periods just can calculate tested floating drum model 7, just can adjust by the ballast position of adjusting tested floating drum model 7, until reaching expected value inertia; Just tested floating drum model 7 can be horizontally rotated 90 another directions of degree adjustment after having adjusted a direction; Adjustment by above step just can be so that the mass distribution of tested floating drum model 7 reaches designing requirement, thereby the warranty test accuracy satisfies accuracy requirement.
In sum, waving framework 2 is the topmost parts of the present invention, in order to measure erose tested floating drum model 7, particularly the bottom is taper or the tested floating drum model 7 of ball-shaped, wave the Installation Modes of tested floating drum model 7 on the framework 2 and abandoned flat mode, but be the characteristics of prototype substantially according to floating drum, on the symmetric position of the model support platform 4 of hollow ring structure, be provided with four taper bracing frames 6, as long as it is just passable to search out four stable strong points on tested floating drum model 7, rather than as bigger plane of the necessary searching of ship model, thereby the profile comformability that uses minimum area of contact when the assurance model is firm, to have maximum.Even the unusual tested floating drum model 7 of fitfull also can adapt to the profile needs of tested floating drum model 7 by the height of adjusting each taper bracing frame 6.And the loop configuration of model support platform 4 makes its centre can hold outstanding structure of tested floating drum model 7, as attached bodies such as standpipe termination, tethers structures, thereby when guaranteeing precision, has simplified the erection work that tested floating drum model 7 is adjusted greatly.And each taper bracing frame 6 can also be done suitable moving along guide rail 9, thereby provides bigger facility for the installation of tested floating drum model 7.Because tested floating drum model 7 is lighter, each taper bracing frame 6 can't destroy the structure of tested floating drum model 7.And also can regulate in the weight of the weight 5 that waves the setting of framework 2 bottoms, waving framework 2 and still can on two steel bearing edges 3, realize outside the stable equilibrium after tested floating drum model 7 guarantee to be installed, can also be by regulating the weight of weight 5, so that adapt to the requirement that the tested floating drum model 7 of different quality is adjusted, the weight that can suitably lower weight 5 for lighter tested floating drum model 7 is to improve measuring accuracy.
The various embodiments described above only are used to illustrate the present invention; the structure of each parts, size, the position is set and shape all can change to some extent; on the basis of technical solution of the present invention; all improvement and equivalents of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.
Claims (7)
1. floating drum model quality profile adjustment device, it is characterized in that: it comprises that a bracing frame and waves framework, the described framework that waves comprises that a model support platform and can regulate the weight of weight; Both sides, support frame as described above top are respectively arranged with a steel bearing edge, and the described framework that waves flexibly connects by two described steel bearing edges and support frame as described above.
2. a kind of floating drum model quality profile adjustment device as claimed in claim 1, it is characterized in that: the described framework that waves comprises described model support platform, the place, four summits of described model support platform is provided with a taper bracing frame respectively, and two described taper bracing frames are corresponding setting with two described steel bearing edges respectively; The bottom of described model support platform, with the corresponding suspension arm that is provided with two aluminums of two other described taper bracing frame, the end of described two suspension arms all is connected to described weight, forms leg-of-mutton heavy burden structure; Be respectively arranged with a guide rail between described model support platform and four described taper bracing frames; The below of described model support platform is respectively arranged with a hook that is used for hanging in measurement counterweight with four described guide rail corresponding sections.
3. a kind of floating drum model quality profile adjustment device as claimed in claim 1, it is characterized in that: described model support platform adopts the hollow ring structure of light-duty aluminium matter.
4. a kind of floating drum model quality profile adjustment device as claimed in claim 2, it is characterized in that: described model support platform adopts the hollow ring structure of light-duty aluminium matter.
5. as claim 1 or 2 or 3 or 4 described a kind of floating drum model quality profile adjustment devices, it is characterized in that: on the described model support platform, offer one respectively with two described steel bearing edge corresponding positions and be used to guarantee the described shallow slot that framework freely swings that waves.
6. as claim 1 or 2 or 3 or 4 described a kind of floating drum model quality profile adjustment devices, it is characterized in that: support frame as described above adopts the square structure of steel, and the described framework that waves adopts triangular structure.
7. a kind of floating drum model quality profile adjustment device as claimed in claim 5 is characterized in that: support frame as described above adopts the square structure of steel, and the described framework that waves adopts triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110021390 CN102114898B (en) | 2011-01-19 | 2011-01-19 | Mass distribution adjusting device for buoy model |
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| CN 201110021390 CN102114898B (en) | 2011-01-19 | 2011-01-19 | Mass distribution adjusting device for buoy model |
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| CN102114898A true CN102114898A (en) | 2011-07-06 |
| CN102114898B CN102114898B (en) | 2013-04-24 |
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| CN 201110021390 Active CN102114898B (en) | 2011-01-19 | 2011-01-19 | Mass distribution adjusting device for buoy model |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323039A (en) * | 2011-08-12 | 2012-01-18 | 上海交通大学 | FISHFARM float section experiment model |
| CN104215418A (en) * | 2014-09-16 | 2014-12-17 | 上海交通大学 | Ocean platform model multiple target physical property determination device |
| CN113389978A (en) * | 2021-04-14 | 2021-09-14 | 浙江大学 | Posture stabilizing device with anti-rolling structure |
| WO2022217633A1 (en) * | 2021-04-14 | 2022-10-20 | 浙江大学 | Deadweight-based device stabilizing apparatus |
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| JPS52137897A (en) * | 1976-05-13 | 1977-11-17 | Kawasaki Heavy Ind Ltd | Method of testing model of ship or the like |
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| CN86106881A (en) * | 1986-10-15 | 1987-03-11 | 北京工业学院 | The measuring moment of inertia of rigid bodies device and method |
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2011
- 2011-01-19 CN CN 201110021390 patent/CN102114898B/en active Active
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| JPS52137897A (en) * | 1976-05-13 | 1977-11-17 | Kawasaki Heavy Ind Ltd | Method of testing model of ship or the like |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323039A (en) * | 2011-08-12 | 2012-01-18 | 上海交通大学 | FISHFARM float section experiment model |
| CN104215418A (en) * | 2014-09-16 | 2014-12-17 | 上海交通大学 | Ocean platform model multiple target physical property determination device |
| CN113389978A (en) * | 2021-04-14 | 2021-09-14 | 浙江大学 | Posture stabilizing device with anti-rolling structure |
| WO2022217633A1 (en) * | 2021-04-14 | 2022-10-20 | 浙江大学 | Deadweight-based device stabilizing apparatus |
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| CN102114898B (en) | 2013-04-24 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Patentee after: Shanghai Jiao Tong University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center Patentee before: Shanghai Jiao Tong University |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Shanghai Jiao Tong University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: Shanghai Jiao Tong University |
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